{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "patch vulnerability", "arguments": ["patch number", "issues addressed", "vulnerability", "time", "vulnerable system", "patch", "vulnerable system version", "supported platform", "releaser", "common vulnerabilities and exposures"]}], "input": "Cisco patches a severe flaw in switch deployment software that can be attacked with crafted messages sent to a port that 's open by default ."}
{"patch vulnerability": [{"patch number": "NAN", "issues addressed": "be attacked with crafted messages sent to a port", "vulnerability": "a severe flaw", "time": "NAN", "vulnerable system": "switch deployment software", "patch": "NAN", "vulnerable system version": "NAN", "supported platform": "NAN", "releaser": "Cisco", "common vulnerabilities and exposures": "NAN"}]}